nf_set_log_level not included in netcdf.mod

[kgerheiser]

I built NetCDF-C with --enable-logging and NetCDF-Fortran with CPPFLAGS=-DLOGGING. Then, I try to call nf_set_log_level, but I get function not found.

Desktop/ufs-data/ufs-weather-model/FV3/io/module_write_netcdf_parallel.F90:87:12:

   87 |     ncerr = nf_set_log_level(3); NC_ERR_STOP(ncerr)
      |            1
Error: Function 'nf_set_log_level' at (1) has no IMPLICIT type

nf_set_log_level is not included in netcdf.mod, and I found I have to #include "netcdf.inc" for it to work. I think there should be an nf90_set_log_level that works with the module.

It would also be nice if nf_set_log_level were documented somewhere and told you that you have to add -DLOGGING to the pre-processor, or automatically detect if NetCDF-C was compiled with --enable-logging.

[edwardhartnett]

All good points. The netCDF-4 logging capability was developed and used internally (by me) when developing netCDF-4. I didn't think it would be useful to end users, but it is.

Meanwhile, @DennisHeimbigner developed his own logging system for the DAP code.

We have several issues open regarding this: Unidata/netcdf-c#1845, Unidata/netcdf-c#1762, and Unidata/netcdf-c#643.

I did a better job with logging on the PIO library, which has logging similar to the netcdf-4 logging, but without some of the ugliness, and with separate output streams for each processor. This is absolutely essential when debugging parallel I/O problems, but is not in the netcdf-c logging yet.

So there is much to be done, and if I could clone myself 10 times, I just might be able to finish it all...